Tabulating mechanism for typewriter or like machines



Oct. 1, 1957 L. P. FRECHETTE, JR 2,308,142

TABULATING MECHANISM FOR TYPEWRITER 0R LIKE MACHINES Filed Aug. 6, 1956 2 Sheets-Sheet 1 LED PETE/i FRE'CHETIZjJ i Oct. 1957 LP. FRECHETTE, JR 2,808,142

TABULATING MECHANISM FOR TYPEWRITER OR LIKE MACHINES Filed Aug. 6, 1956 2 Sheets-Sheet 2 ATTORNEYS United States Patent This invention relates to tabulating mechanism for typewriting orlike vmachines,and more particularly to tabulating mechanism of the kind including a tabular stop on the main or stationary frame, a tabular stop on the traveling carriage, and mechanism for projecting one ofthe stops from a retracted position in which it is notengage- '-able with the other of the stops to a projected position in which it is engageable with the other of the stops, and for" returning the projected stop to its retracted position in response to engagement of the stops with eachother and arresting of the carriage at the end of a tabulating run.

Mechanism embodying the invention is adapted for use generally in connection withtypewriters or like machines ofvarious kinds, but'has special utility when incorporated in tabulating mechanisms of the ten key decimal or denominational kind in the operation of which depression of a selectedone of a plurality of tabulator keys will-effect Y movement of the carriage to a predetermined columnar or decimal position. A number of such mechanisms,previously known, have included a carrier or auxiliary carriage mounted on the main frame and supporting aplurality of stop devices or fingers normally in retracted positions in which they are out of the path of a coopera'ble stop on the main traveling carriage. The auxiliary earriage or stop carrier is spring urged toward the operators right, that is in the direction of return travel of themain carriage, against a limit stop. In the performance of a tabulating operation, the main carriage is releasedfrom the control of the usual escapement mechanism so as to run to the left, and a selected one of the carrier supported stops is moved into projected position in which it isin the path of the carriage mounted stop, the escapement releasing and stop projecting parts being latched in their actuated positions. As the main carriage approaches the end of its tabulating run, the carriage mounted stop engages the projected carrier supported stop and moves the latter together with the other carrier supported stops and the carrier itself to the left against the springurge or bias constantly exerted on the carrier until the carrier has moved against a limit stop, thus arresting the carriage in it's predetermined tabulated position. The leftward movement of the carrier unlatches the escapement disabling and" stop projecting parts, enabling them to 'be restored to their normal positions. I

The previously known mechanisms referred to have generally been efie'ctive' and reliable in operation when a carriage has performed a fairly long tabulati'ng run and has acquired suflicient speed and kinetic energy to overcome the spring bias constantly exerted on the stop carrier, but have not always operated satisfactorily when the carriagehas performed relatively short runs and has not-acquired sufiicient kinetic energy to insure movement of the stop carrier to its latch disabling position.

An ohject ofth' present invention is to provide tabulatifigmechanism of the kind referred to ernbddyin ieea structional improvement's'hy which the difficulties of the previously known mechanisms referred to are overcome, and" reliable and certain operation is insured when the traveling" carriage isperforming either long or short tabu= la'ting" runs.

Another object of the inventionis' to provide an infproved tabulating mechanism of the character stated in whichinitiation of a tahulat'ing operation renders the stop carrier free to be moved. to its latch releasing position without being biased or restrained when the carriage mounted stop engages the carrier mounted stop.

7 A further object .of the invention is to provide such a mechanism in which the stop carrier is normally biased in the direction of carriage return travel, and which includes .debiasin'g means for disabling the biasing means land-rendering the carrier free to beishifted in the carriage character spacing travel-direction.-

Other objects of the invention will become apparent from a reading .of the following description of a preferred constructionalform, the appended claims; and the-accom- .panying" drawings, in which: a

Figure '1 is a fragmentary perspective view of mecha- .nism-embodying the invention, some parts being shown in vertical section; I

Figure 21is a reduced scale fragmentary top plan view of the mechanism shown in Figure 1,- stationary frame parts being shown in horizontal section;-

Figure 3 is a fragmentary top plan view, drawn on an enlarged scale, of tabular stop latch and biasing mechanism, the latch parts being shown in full lines in their normal positions and in dotted lines in intermediate operating. positions; I H

Figure 4 a fragmentary top plan view similar toFigure 3 but showing biasing mechanism in fulllines in its normal position .and in dotted lines in its operated position; and F Figure 5 is a fragmentary view, partly in vertical section, front to rear, of the machine and'partly'in elevation, drawn on areduced scalfe. v

=Tl1e typewriting mechanism shown by way of example as embodying the invention in a preferred form is generally similar in many respects to the Royal standard ofiice typewriter 'and the Royal electrictypewriter. It includes a mainframe-element, parts-of which are shown at A, provided with -alower track or rail 1 on which a 1 carriage element B, including end plates 2 and 3,. is

mounted for letter spacing and return 'movements' by r'neansof a carriage or top rail 4 and ball rollers, one of which is shown at- 5 in Figure 5. The carriage B is equippedwith the usual cylinder or plateri'C.

Type bars, not shown, are suitably mounted on the frame, for example on a frame-supported case shift-irig segment, the type bars and segment being operable by I mechanism of any suitable kind, preferably powerdri-ven mechanism. Rearwardly extending end plate parts, one of'which is shown at 3 in Figure 5, serve to' mount a supp 'r't ge'iierally designated 6 for a plurality of tabular nian's or stops 77".

Th c'arfi'age' Bis urged to the left inthedirection of the arrow a in Figure 1,that is, 'inthe; character spac ing direction, by suitable mechanism, for example including a conventional spring drum, not shown, and a draw band connected by a clip 11 to an ear 1'1? on the right-hand carriage end plate 2 as shown in Figure 5', Feeding of the" carriage tothe left underthe urge of the driving 'niechanismis controlled by 'escapeinen't mecha nism illustrated partially as including a rack 12 carried by an angle bar 13 having rearwardly extending arms, one of which is shown at 14, pivotally mounted on the carriage at 15. Springs, one of which is shown at 16, connected to the arms 14 and anchored to the carriage, normally condition the feed controlling mechanism for effecting character spacing carriage travel by holding the escapemeut rack 12 in the position shown in full lines in Figure 5, in which the rack meshes withan escapement pinion 18 journalled on a shaft carried by a framemounted bracket 19. The pinion 18 is fast with an escapement wheel 20 adapted to rotate on the pinion shaft and to cooperate with escapement pawls or dogs, not shown, which may be of the kind and operated in the manner disclosed, for example, in Patent No; 2,563,722, granted August 7, 1951, to Henry J. Hart.

In operation, when the escapement dog mechanism is actuated, the wheel 26 is permitted to turn in step-bystep increments so as to permitth'e rack 12 and, consequently, the carriage to be fed to the left in incremental letter or character spacing movements. V

The tabulating mechanism includes the support 6, comprising upper and lower rack bars 21 and 22 respectively formed with transverse grooves which register with each other and which are spaced longitudinally of the rack bars at'character space intervals. Mounted on the stop fame 6 are a plurality of the laterally settable stop devices, several of which are designated 7 and are shown in their normal or inoperative positions, and anotherof which is designated 7 and is shown in its rearwardly projected or. operative position. The tabular stops 7-7 are similar to individual stops disclosed in the patent to Myers et al.

No. 1,892,071, dated December 27, 1932. Each tabular stop can be shifted transversely of the frame 6 to an operative position at 7' or to an inoperative position shown at 7, and be frictionally and yieldably maintained in whichever position it has been set by a spring 7*.

When a tabular stop is set in its operative position as shown at 7', its rear edge projects toward the back of the machine sufiiciently to be engaged by one of a plurality of frame mounted tabular stop devices adapted selectively to be moved into or out of the path of the 'operatively positioned stop 7. In the illustrative embodiment of the invention, the frame mounted stop devices are of such construction that when one has been moved to operative position it will be set or latched automatically to remain there until a tabulating operation has been completed without its being necessary for a key or other mechanism, which caused movement of the device to operative position, to be held depressed or otherwise in operated position. Many of the parts described above are of known construction and relative arrangement. The invention relates more particularly to other parts to be described hereinafter, and to the combination of such other parts with parts already described.

The illustrative embodiment includes ten tabular stop devices formed as blades or fingers 23 mounted on a carrier generally designated 24 and comprising a shaft or rod 25 extending through and being slidable in spaced frame brackets or walls A and A Secured to the 4 29 on the upper ends of the respective stop devices 23. When the stop devices 23 are in their normal positions under the urge of the springs 27 their forward upper portions are retracted so as not to be engageable by the operatively positioned tabular stop 7 on the carriage during character spacing movement of the latter. The stop devices 23 are, however, adapted to be rocked counterclockwise into projected positions in which their forward upper portions are disposed in the path of and are thus engageable by the operatively positioned tabular stop means 7 as the later moves in the character spacing direction with the carriage. The stop devices 23 are movable selectively and individually into such projected positions by key controlled mechanism to be described, one of the stop devices being shown in its operated or projected position at 23' in Figure 2 and in dotted lines in Figure 5.

The key controlled setting means for effecting movement of the stops 23 to projected positions is so constructed that initial or partial depression of a key directly moves the stop 23 associated with that particular key partially to its projected position, the subsequent or continued depression of the key then effecting operation of power driven means for moving the selected stop, 23 completely to its projected position for cooperation with the operatively positioned carriage mounted stop 7". Figures 1 and 2 show a plurality of tabular keys 30, ten such keys being shown in Figure 2 for selectively effecting operation of the ten frame mounted stop devices 23. The connections between the several keys 30 and the respectively associated stop devices 23 and power mechanism are similar and only the connections associated with the rightmost key 30 are illustrated. As shown in Figure l, the rightmost key 30 is pivoted at its lower end to a lever member 32 which is rockable on a frame mounted shaft 33. A link 34 is pivoted at its front end to a depending arm 35 on the lever 32, and is pivoted at its rear end to the lower arm 36 of a lever generally designated 36 which is pivoted on the main frame by a shaft or rod 37. The upper arm 36 of the lever 36 is pivotally connected to the front end of a link 38, the rear-rend of which is formed with a slot 39 which receives a headed stud 40 I secured to the lower end of the rightmost tabular stop shaft or rod 25 is a U-shaped frame or strap 26 the forwardly extending sides 26 and 26 of which are disposed close to the frame walls A and A respectively with sufiicient clearance to permit the shaft 25 and frame 26 to shift relatively to the main frame A in the direction of carriage travel. close to one another on the shaft 25 so as to shift con jointly with the shaft and with each other when the carrier 24 is shifted parallel to the carriage travel. The stop devices 23 are individually rockable about the axis of the shaft 25 transversely to the carriage travel, and are normally held in retracted positions by individual The stop devices 23 are mounted I device 23.

In operation, when the rightmost key 30 is depressed the lever 32 is rocked clockwise so as to pull the link 34 forwardly and rock the lever 36 clockwise, thereby moving the link 38 rearwardly to cause the root of the slot 39 to press against the stud 40 and rock the rightmost stop device 23 counterclockwise against the urge'of its normalizing spring 27. The rocking of the stop device 23 effected by initial depression of the key 30 with the cooperation of the link 34, lever 36 and link 38 moves the stop device 23 only partially toward its projected position and requires little manual effort since the normalizing spring 27 is weak and is only partially stretched during this phase of the operation.

The partial rocking of the stop device 23 during the initial depression of the key also conditions the stop device for being rocked by power operated means completely to its projected position. The power operated means includes a frame mounted shaft 41 to which is secured an actuator bail 42 formed with a stop setting cam edge 42 cooperable with the lower edge 43 of a. nose depending from the stop device 23. In operation, when the stop device 23 has been rocked partially toward its projected position by initial depression of the key 30, the nose edge '43 will be disposed above the bailcam edge 42 so that when the shaft 41 and bail 42 are rocked counterclockwise the cam edge 42 will engage the nose; edge 43 and force it rearwardly. 'This will complete rock-,

ing of the stop device 23 to its projected position wherein;

normalizing springs 27 connected between an anchor plate 28 fixed to the frame 26 and rearwardly extending cars it is disposed for engagement with the operatively posi-. tioned stop 7 on the carriage for arresting the carriage. at the end of a tabulating run.

tember 18, 1951.

dependable in operation when the carriages have been performing relatively long tabulating runs and have, therefore, acquired kinetic energy to overcome the carrier bias, the prior mechanisms have frequently been uncertain in operation when the carriages have been called upon to perform relatively short tabulating runs,

acquiring insuflicient kinetic energy to overcome the carrier bias and to move the carriers to their leftmost limits as is required for unlatching the operating mechanisms. --In accordance with the present invention, this difilculty is overcome and the unlatching of the operating mechanismis made certain for both relatively short tabulating runs and relatively long tabulating runs by the provision of debiasing means operable for disabling the carrier biasing mechanism automatically as a part of and preferably at the beginning of a tabulating operation. In the preferred construction shown, the biasing lever 63 is formed with a debiasing part or rounded nose 63 which extends above the front end of the latch 53 and projects in front of the latch nose153 without engaging the latch arm 55 when the latter is in its normal position, retracted to therear of the latch nose 53 Since the debiasing nose 63 is thus normally free from restraint by the latch arm .55, the biasing spring 61 is normally enabled to urge the biasing lever 63 clockwise to cause its contact part 63 to press against the contact part 58 of the carrier shaft arm 58 and bias the carrier 24 toward the right.

When the shaft 41 is rocked counterclockwise for conditioning the feed controlling mechanism for enabling a tabulating run and for moving the selected stop 23 to projected position, the latch arm 55 moves forwardly and engages the debiasing nose 63 so as to rock the biasing lever 63 counterclockwise to its operated position and disengage its contact part 63 from the carrier arm contact part 58, the latch arm 55 and biasing lever 63 then being in the positions shown in dotted lines in Figure 4. With the parts so positioned, the carrier 24 is no longer subjected to the bias of the spring 61 so that when the carriage mounted stop 7' engages the projected frame mounted stop 23, the carrier 24 and allof the stops 23 may easily be shifted to the left without being restrained by the spring 61, the leftward shifting of the carrier 24 cansvery short tabulating run and is moving slowly at the time of engagement of the stop 7 with the projected stop 23'.

Upon unlatching of the latch arm 55 and return clockwise rockingof the shaft 41 and bail 42 to their normal positions, the latch arm 55 will move rearwardly away from the debiasing nose 63 so as to enable the spring 61 to rock the biasing lever 63 clockwise, causing. the contact part 63 to press against the contact part 58 and ,shift the carrier 24 back to its normal position in contact with the frame part A The parts will then all have .been restorted to their normal or starting positions so that the machine will be conditioned for continued typing operation, or for another tabulating operation.

Power driven mechanism generally designated D is provided for operating the link 46, shaft 41 and associated ,parts.

Preferably, the power driven mechanism D is of the kind including a continuously running prime mover, such as a snatch roll 65, cooperable momentarily under key control with an actuator or pawl carrier 66 pivoted at 67 to the lever 44 for imparting a driving impulse of short duration to rock the lever 44 counterclockwise .until the latch arm 55 has moved into latched engage- .ment with the latch nose 53 The power driven mechanism shown is of the kind illustrated and described in detail in the patent to Kupper No. 2,567,945, dated Sep- The actuator 66 normally is urged upwardly or clockwise about the pivot 67 by a spring 68 connected at its lower end to the front end of the actuator 66 and anchored at itsupper end to a fixed frame part, not shown. A pawl 69 pivoted on the actuator at 70 is urged to rock clockwise by a spring 71 connected to the pawl and the actuator, but normally is retained in the position shown in Figure 1, in which the pawl nose 69 is above and out of contact with the toothed snatch roll 65, by a trigger, not shown. When the carrier 66 is rocked counterclockwise the trigger engages a frame mounted abutment, not shown, and is moved so as to release the pawl 69 and permit the spring 71 to rock the pawl clockwise and bring its nose 69* into engagement with the snatch roll. The pawl 69 and the carrier 66 are then thrust forwardly so as to rock the lever 44 and pull the link 46 forwardly to operate the shaft 41 and associated parts. When the latch arm 55 has become latched by the latch 53 the pawl 69 will have been cast oif from engagement with the snatch roll 65, but the pawl and the carrier 66 will be held in their operative positions by the latch 53. When the latch 53 is disengaged from the latch arm 55 by leftward movement of the stop carrier 24 and its extension arm 58, the spring 48 will rock the lever 44 clockwise to return the pawl carrier 66 to its normal position while the carrier 66 is held up by the spring 68 so that the pawl 69 will not re-engage the snatch roll 65 during return movement of the carrier 66. For a more detailed illustration and description of the power driven mechanism D, reference is made to the Kupper Patent No. 2,567,945.

For moving the carrier 66 downwardly .to effect engagement of the pawl 69 with the snatch roll, the key operated lever 32 is formed with a rearwardly projecting finger 72 which overlies a bar 73 carried by arms 74 supported on the shaft 33, the arrangement being such that when any one of the keys 30 is depressed beyond the position in which it has moved its associated tabular stop device 23 to its intermediate position, the associated lever finger 72 will rock the rod and arm assembly 73, 74 clockwise so as to move a link 75 downwardly and rock a lever 76 clockwise about a pivot rod 77 supported on the main frame A. A spring 78 connected to the lever 76 and to the main frame A normally maintains the lever 76 in the position shown in Figure 1. When the lever 76 is rocked clockwise by depression of a key 30, a flipper 79 pivoted at 80 on the rear end of the lever 76 and urged clockwise by a spring 79 presses against an ear 81 on the pawl carrier 66 for rocking the latter counterclockwise and bringing the pawl nose 69 into engagement with the snatch roll 65, as previously explained. If the key 30 is held depressed until after the latch arm 55 has been released and the carrier 66 has consequently been permitted to return to its normal position, the carrier ear 81 will engage the flipper 79 during return movement of the carrier, but this movement will not be interrupted by the flipper because the latter will rock idly counterclockwise about its pivot 80 until the ear 81 has passed to the rear of the flipper.

Operation Although phases of the operation of the mechanism have been explained in connection with the disclosure of several combinations and sub-combinations, a summary of a typical operating cycle may assist in understanding the invention.

Prior to the initiation of a tabulating operation the parts will be in the positions shown in Figure 1 and in full lines in Figures 3, 4 and 5, and the snatch roll 65 will be running continuously counterclockwise. The carrier 24 and all of the associated stop devices 23 will be biased toward the right and held in their normal positions by the spring 61 and biasing lever 63, all of the stop devices 23 being in their retracted positions. To initiate a tabulating run of the carriage B a key 30, for example the rightmost key shown in Figures 1 and 2, is depressed so as to rock the associated lever 32 and operate the link 34, lever 36 and link 38 tomove the 9 s selected stop device 23 to its intermediate positionfin which its depending nose edge is "disposed above "the bail cam edge 42. Continued depression of the lrey 30 will cause the lever finger 7-2 to rock the rod arm assembly 73, 74 and thereby move thepa'wlcarrier 66 counterclockwise to effect engagement of the pawl nose '69 with the snatch roll 65. The snatch roll then drive the pawl '69 and carrier "66 forwardly to operate the lever 34, link 46 and shaft and hail assembly 41, 42 to move the stop setting bail edge 42' into engagement with the nose edge 43 of the selected stop device i3 and cam the stop device into its fully projected positio'n as shown at 23 in Figures 2 and 5 in which its upper and forward portion will be disposed in the path of the frame mounted stop 7'. Conc'ommit'antly with move ment of the stop 23 to its projected position, the arm 50 on the shaft 41 will operate the rack releasing lever 51 to disengage the rack 12 from the escapement pinion 18 and enable the 'carriageto'perform a tabulating run. The rocking of the shaft 41 for moving thestop device 23 to its projected position and disengaging'the es'cap'ernent rack lzfrorn the pinion .18 moves the latch arm 55 into engagement with the latch nose 53 and also intoen'gageinent with the debia'sihg nose 63 of the biasing lever 63 so as to "rock the latter into the position shown in dotted lines in Figure 4. This disengages the contact part 63' on the lever-63 from the contact part "58 m: the carrier arm 58, thereby removing the bias from the carrier and conditioning n to be moved freely toward the left. When the carriage approaches the end of it's tabula'ting run, the stop 7' engages the projected stop device 23' and moves the latter together with the retracted stop devices 23 and the carrier 24 toward the left until arrested by engagement of the carrier frame side 26 with the fixed frame part-A Since "this leftward movementof the carrier '24 andsto'p devices 23and' 23 takes place without restraint by the biasing 'spring 61, movement of the carrier'andsupported-stop devices '23, 23 completely to their leftmost positions is insured even though the carriage has performed only-a short tabulating run and has acquired only a small amount of kinetic-energy.

Leftward movement of the carrier 23 -causes the resetting part 58' 'onfthe carrier arm 58 to press against the resetting part 60 on the latch 53 to rock the latch counter-clockwise and release the latch arm 55, thereby permitting the arm 55 and associated parts 'to "be returned to their-normal positions by the spring '48. Clockwise rocking of the bail 42 under the urge of'the spring 48 will release the projectedstop for being returned to its normal position by the associated "spring 27, and if the projected stop is not fully returned by the relatively weakspring -27 the lower edge of the bail will engage the stop cam surface 43 to rock the stop 23' to itsretra'cted position under the urge of the relatively stronger sprin 48.

'Restoratio'nofthe latch arm "'55 to its normalposition by the spring 48 will also reactivatethe biasing lever '63 and spring "61 to cause the contact part 63 to press against the 'contact 'part 58 on the carrier arm 58 and move the carrier 24'and'sto'ps23 toward the right until arrested by engagement of the carrier frame side 26 with the fixed frame part A Rocking of the shaft 41 by the spring 48 upon unlatching of the arm '55 willdeactivate the .escapement releasing lever 51. The :machine will 'thenbe conditioned for typing or for the per 'formance of another =tabulating operation.

"a'cter spacing direction; feed controlling mechanism norjmally conditioned :for effecting *character spacing movements o'f said carriage element and'being conditionable *for enabling tabulating runs of said carriage element; 5 tabular stop means on one of said elements; -a'tabular stop device; means mounting said tabular stop device "on' the other (Sf-said elements for movementtransversely of the direction of carriage element travel from a retraeted position in which it is not engageable with said tabular stop mean's'in'to a projected position in which said tabular stop device is engageable with said tabular stop means for arresting'said carriage element at the end of a tabulati'ng run, said mounting means also mounting said tabular stop device for movement parallel to the carriage element travel froni'a normal position to an actuated position; biasing means for urging said tabular stop device parallel to' the carriage element travel towardits normal position and for normally maintaining said tabular stop device in its said normal position; means for conditioning r said feed controlling mechanism for enabling a 'tabula'ting run =o'f said carriage element; setting means for moving said tabular stop device from its retracted position to its projected position; and debi asing means for disabling said biasing means to permit said tabular stop device to be moved to its actuated position by 'said tabular stop means whenengaged thereby without being restrained by said biasing means.

2. In 'a typewriter or like machine, the combination of a frame element; a carriage element mounted on said frame element for character spacing and return travel; mechanism for driving said carriage element in the character spacing direction; feed controlling mechanism normally conditioned for effecting character spacing movements of said carriage element and being conditionable for enabling tabulati'ng runs of said carriage element; tabular stop-meanson o'ne of said elements; a tabular stop device; means mounting said tabular stop device on the other of said elements for movement transversely of'the direction of carriage e'lement'travel from a retracted position in which it is not engageable with said tabular stop means into 'a'projected position in which said tabular stop'device is engageable with said tabular stop means for arres'ting said carriage element at "the end of a tabulating run, said 'mounting means also mounting said. tabular -stop device for movement parallel to the carriage element travel from -'a normal position to an actuated position;fbiasingmeans for urging said tabular stopdevic'e pauallel to the carriage element travel toward its normal position andfor-norm'ally maintaining said tabular stop device in-itssaid normal position; means for conditioning'saidfeedcontrollingmechanism for enabling a tabulating run of said carriage element; setting means for moving 'said tabular stop device from its retractedposition to its projected position; debiasing means for disabling said biasing means to permit said tabular stop device to be moved to its actuatedposition by'said tabular stop-means when engaged'thereby without being restrained by said biasing means; and manually controlled -means for operating said setting means, said conditioning rneans'and'said debiasing means.

3. In a typewriter or like machine, the combination of a frame element; a carriage element mounted on said frame element for-character spacing and return travel; mechanism for'driving said carriage element'in the character spacing-direction; feed-controlling me'chariisni normally conditioned :for effecting character spacing movements-of said carriage elementand being :conditionable for enabling tabulating runs of said carriage element; tabular stop means mom of said elements; .a tabular stop device; means mountings-said tabular stop device'on the other of said elements for movement transversely of the direction of carriage element travel from a retracted position in'which it is not engageable with said tabular stop means into a projected position in which said tabular stop device'is'engageable with said tabular stop means -75 for arresting said carriage element at the end of a tabuvlating run, said mounting means also mounting said tabular stop device for movement parallel to the carriage element travel from a normal position to an actuated position; biasing means for urgingsaid tabular stop device parallel to the carriage element travel toward its normal position and for normally maintaining said tabular stop device in its said normal position; means for conditioning said feed controlling mechanism for enabling a tabulating run of said carriage element; setting means for moving said tabular stop device from its retracted position to its projected position; debiasing means for disabling said biasing means to permit said tabular stop device to be moved to its actuated position by said tabular stop means when engaged thereby without being restrained by said biasing means; power driven means; and manually operable means for efiecting operation of said setting means and said conditioning means and for effecting operation of said debiasing means by said power driven means.

4. In a typewriter or like machine, the combination of a frame element; a carriage element mounted on said frame element for character spacing and return travel;

mechanism for driving said carriage element in the character spacing direction; feed controlling mechanism normally conditioned for effecting character spacing movements of said carriage element and being conditionable for enabling tabulating runs of said carriage element; tabular stop means on one of said elements; a tabular stop device; means mounting said tabular stop device on the other of said elements for movement transversely of the direction of carriage element travel from a retracted po- 'sition in which it is not engageable with said tabular stop means into a projected position in which said tabular stop device is engageable with said tabular stop means for arresting said carriage element at the end of a tabulating run, said mounting means also mounting said tabular stop device for movement parallel to the carriage element travel from a normal position to an actuated position;

biasing means tor urging said tabular stop device parallel to the carriage element travel toward its normal position .and for normally maintaining said tabular stop device in .its said normal position; means for conditioning said feed controlling mechanism for enabling a tabulating run of said carriage element; setting means for moving said tabular strip device from its retracted position to its projected position; debiasing means for disabling said biasing means to permit said tabular stop device to be moved to its actuated position by said tabular stop means when engaged thereby without being restrained by said biasing means; power driven means; manually operable means;

and means responsive to operation of said manually operable means for effecting operation of said setting means, said conditioning means and said debiasing means by said power driven means.

57 In a typewriter or like machine, the combination of a frame element; a carriage element mounted on said frame element for character spacing and return travel;

direction of carriage element travel from a retracted position in which it is not engageable with said tabular stop means into a projected position in which said tabular stop device is engageable with said tabular stop means for arresting said carriage element at the end of a tabulating run, said mounting means also mounting said tabular stop device for movement parallel to the carriage element travel from a normal position to an-actuated position; biasing means for moving said tabular stop device p rallel to the carriage element travel from its actuated position to its normal position and for normally maintaining said tabular stop device in its said normal position; means for conditioning said feed controlling mechanism for enabling a tabulating run of. said carriage elen ent setting means for moving said tabular stop device from its retracted position to its projected position; and debiasing meansfor disabling said biasing means to permit said tabular stop device to be moved to its actuated position by said tabular stop means when engaged thereby and whilerfree of restraint by said biasing means.

7 6. In a typewriter or like machine, the combination of a frame element; a carriage element mounted on said frame element for character spacing and return travel;

mechanism for driving said carriage element in the character spacing direction; feed controlling mechanism normally conditioned for effecting character spacing movements of said carriage element and being conditionable for enabling tabulating runs' of said carriage element; tabular stop means on one of said elements; a tabular stop device; means mounting said tabular stop device on the other of said elements for movement transversely of the direction of carriage element travel from a retracted .position in which it is not engageable with said tabular stop means into a projected position in which said tabular stop device isengageable with said tabular stop means for arresting said carriage element at the end of a tabulating run, said mounting means also mounting said tabular stop device for movement parallel to the carriage element travel from a normal position to an actuated position; biasing means for'moving said tabular stop device parallel to the carriage element travel from its actuated position to its normal position and for normally maintaining said tabular stop device in its said normal position; means for conditioning said feed controlling mechanism for enabling a tabulating run of said carriageelement; setting means for moving said tabular stop device from its retracted position to its projected position; debiasing means for disabling said biasing means to permit :said tabular stop device to be moved to its actuated position by said tabular stop means when engaged thereby and while free of restraint by said biasing means; power driven means; a key; means responsive to operation of said key for effecting operation of said setting means and said conditioning means and for effecting operation of said debiasing means by said power driven means; and m eans responsive to movement of said tabular stop device to its actuated position for restoring said tabular stop device to its retracted position, deactivating said conditioning means to prepare said feed controlling mechanism for effecting character spacing movements of said carriage element, and deactivating said debiasing means whereby to enablesaid biasing means to restore said tabular stop device to its normal position. v W

p 7. In a typewriter or like machine, the combination of a frame element; a carriage element mounted on said frame element for character spacing and return travel; mechanism for driving said carriage element in the character spacing direction; feed controlling mechanism normally conditioned for effecting character spacing movements of said carriage element and being conditionable for enabling tabulating runs of said carriage element; tabular stop means on one of said elements; a tabular stop device; means mounting said tabular stop device on the other of said elements for movement transversely of the direction of carriage element travel from a retracted position in which it is not engageable with said tabular stop means into a projected position in which said tabular stop device is engageable with said tabular stop means for arresting said carriage element at the end of a .tabulating run, said mounting means also mounting said tabular stop device for movement parallel to the carriage element travel from a normal position to an actuated position;'biasing means for urging said tabular stop de vice parallel to the carriage element travel toward its normal position and for normally maintaining said tabular stop device in its. said normal position; means for 13 conditioning said feed controlling r'rieoha'nism for enabling a tabulatiiig rim at said ear-ridge element; setting means for moving said tabular stop device from its retracted position to its projeeted lpdsition; debiasing means for disabling said biasing means to permit said tabular stop device to be moved to its actuated position by said tabular stop means when engaged thereby without being restrained by said biasing means; manually controlled means for efiecting operation of said setting means, said conditioning means and said debiasing means; retaining means for releasably holding said tabular stop device in its projected position and for releasably holding said debiasing means and said conditioning means in operated positions; and means responsive to movement of said tabular stop device parallel to the carriage element travel from its normal position to its actuated position by said tabular stop means for releasing said retaining means to enable said tabular stop'device to be returned to its retracted position, for deactivating said conditioning means, and for releasing 'said, debiasing means to enable said biasing means to move said tabular stop device to its normal position at the conclusion of a tabulating run.

8. In a typewriter or like machine, the combination of a frame element; a carriage element mounted on said frame element for character spacing and return travel; mechanism for driving said carriage element in the character spacing direction; feed controlling mechanism normally conditioned for efiecting character spacing movements of said carriage element and being conditionable for enabling tabulating runs of said carriage element; tabular stop means on one of said elements; a tabular stop device; means mounting said tabular stop device on the other of said elements for movement transversely of the direction of carriage element travel from a retracted position in which it is not engageable with said tabular stop means into a projected position in which said tabular stop device is engageable with said tabular stop means for arresting said carriage element at the end of a tabulating run, said mounting means also mounting said tabular stop device for movement parallel to the carriage element travel from a normalposition toan .actuated position; biasing means for urging said tabular stop device parallel to the carriage element travel toward its normal positionand for normally maintaining said tabular stop device in its said normal position; means for conditioning said feed controlling mechanism for enabling a tabulating run of said carriage element; setting means for moving said tabular stop device from its retracted position to its projected position; debiasing means for disabling said biasing means to permit said tabular stop device to be moved to its actuated position by said tabular stop means when engaged thereby without being restrained by said biasing means; power driven means; a key; means responsive to operation of said key for eifecting operation of said conditioning means, said setting means and said debiasing means by said power driven means; retaining means for releasably holding said tabular stop device in its projected position and releasably holding said conditioning means and said debiasing means in their operated positions; and means responsive to movement of said tabular stop device parallel to the carriage element travel from its normal position to its actuated position by said tabular stop means for releasing said retaining means to deactivate said conditioning means, to enable said tabular stop device to be returned to its retracted position and to release said debiasing means and enable said biasing means to move said tabular stop device to its normal position, all at the conclusion of a tabulating run of said carriage element.

9. In a typewriter or like machine, the combination of a frame element; a carriage element mounted on said frame element for character spacing and return travel; mechanism for driving said carriage element in the character spacing direction; feed controlling mechanism i4 normally conditioned "for effecting character spacing movements 0t said carriage element and being condit-ionable for enabling tabulatin runs of said carriage 'elentent; tabular stop means on one of said elements; a tabularstop device; means mounting "said tabular sto device on the other of [said elements for movement transversely :ot the direction of carriage element travel from a retracted position in which it is'not engageable with said tabular stop means into" afprojected position in which i said tabular stop device is engageable with said tabular stop means for arresting said carriage element at the end of a i'ta'bulating run, said mounting means also mounting said tabular stop device for movement parallel to the carriage element travel from a normal position to an :actuated position; a first contact part'connected to and being movable simultaneously with said tabular stop device when 'the latter is movedparallel to the carriage element travel; a second contact part engageable with said first contact :part; biasing means foi" nor'mallypressing said second contacti'partagainstsaid first contact part to move said tabularstop device toand maintain it in its normal position; settingzmeans for moving said tabular stop device from its' retracted position to its projected vposition;

means for conditioning said feed controlling mechanism ior'ena'bling a 'tabulating run "of said carriage element; and debiasin'g'means for disengaging 'said second'contact partfrom said first contact part thereby to permit said tabular stop device to be moved =fr'eely by said tabular stop means when engaged the'reby as saidcarriage element approaches the end of atabula'ting run;

'10. In a typewriter *or-like machine, the combination of a frame element; a carriage element mounted on said frame element for character spacing and return travel; mechanismfor driving-said carriage element in the character spacing directiomfeed controlling mechanishrnormal- 1y conditioned "foreiiecting-character spacing movements *of -said-carriage element and being conditionable for enabling tabulating runs of said catr'iage element; tabular stop means onone of saidselements; a tabu'larstop device; meansfmounting said tabular stop device on the other of said elements for movement transversely of the direction of carriage element travel from a'retracted position in which it is not engageable with said tabular stop means into apro'jec'ted position in which said tabular'stop device isengageable with said tabular stop means for arresting'said carriage element at the end of a tabulating run, saidjmountingmeansalso mounting said tabular stop device for movement parallel to the carriage element travel from -a "normal position to an actuated position; a first contact part connected'to and being movable simultaneously with said tabular stop device when the latter is moved parallel to the carriage element travel; a'secon'd contact part engageable with said first contact part; biasin'g means for normally pressing said second contact'pa'rt against said first contact part to move said tabular stop device to and-maintain it in its normal'position; setting means for moving said tabular stop service from its retracted position to its projected position; means for-con a tab'ulati'rig 'run of said carriage element; debiasing means 7 for disengaging said second contact part from said 'fiist contact part thereby to permit said tabular stop device to be moved freely by said tabular stop means when en gaged'thereby as said carriage element approaches the end of a tabulating run; key controlled power driven means for operating said setting means, said conditioning means and said debiasing means; a latch for releasably maintaining said setting means, said conditioning means and said debiasing means in operated positions; and means responsive to movement of said tabular stop device from its normal position to its actuated position by said tabularstop means for releasing said latch thereby to efiect restoration of said tabular stop device to itsretracted position, deactivation of said conditioning'means and said debiasing means, and reactivation of said biasing means.

11. In a typewriter or like machine, the combination of a frame; a carriage mounted on said frame for character spacing and return travel; mechanism for driving said carriage in the character spacing direction; feed controlling mechanism normally conditioned for effecting character spacing movements of said carriage and being conditionable for enabling tabulating runs of said carriage; tabular stop means on said carriage; a shaft mounted on said frame for movement parallel to the direction of carriage travel; a tabular stop device mounted on said shaft for rocking about the shaft axis from a retracted position in which said tabular stop device is displaced from the path of travel of said tabular stop means into a projected position in which said tabular stop device is in said path, said tabular stop device being movable conjointly with said shaft parallel to the direction of carriage character spacing travel from a normal position to an actuated position; a first contact part fixed with respect to said shaft; a biasing lever having a second contact part engageable with said first contact part; a spring normally urging said lever to rock to a normal position in which said second contact part presses against said first contact part in the carriage return travel direction for maintaining said tabular stop device in its normal position; key controlled power operated means for conditioning said feed controlling mechanism to enable a tabulating run of said carriage, for moving said tabular stop device from its retracted position to its projected position and for rocking said biasing lever to an operated position against the urge of said spring to disengage said second contact part from said first contact part and render said shaft and said tabular stop device free to be moved in the character spacing direction; a latch for releasably maintaining said power operated means in operated position; a first resetting part fixed with respect to said shaft; a second resetting part on said latch and being operable by said first resetting part for releasing said latch when said shaft is moved in the character spacing direction by engagement of said tabular stop means with said tabular stop device as said carriage approaches the end of a tabulating run; and means responsive to releasing of said latch for restoring said tabular stop device to its retracted position, for enabling said spring to rock said biasing lever to its normal position and for reconditioning said feed controlling mechanism for effecting character spacing movements of said carriage.

12. In a typewriter or like machine, the combination of a frame element; a carriage element mounted on said frame element for character spacing and return travel; mechanism for driving said carriage element in the character spacing direction; feed controlling mechanism normally conditioned for eifecting character spacing movements of said carriage element and being conditionable for enabling tabulating runs of said carriage element;-tabular' stop means on one of said elements; a carrier mounted on the other of'said elements for movement parallel to the carriage element travel from a normal position to an actuated position; a plurality of tabular stop devices mounted on said carrier for conjoint'movemerit therewith parallel to the carriage element travel and for individual movement transversely of the direction of carriage element travel from retracted positions in which abling a tabulating run of said carriage element; setting means for moving a selected one of said tabular stop devices from 'its retracted position to its projected position; and debiasing means for disabling said biasing means to permit said carrier to be moved without being restrained by said biasing means when said tabular stop means and the selected tabular stop device are in mutual engagement as the carriage element approaches the end of a tabulating run.

13. In a typewriter or like machine, the combination of a frame element; a carriage element mounted on said frame element for character spacing and return travel; mechanism for driving said carriage element in the character spacing direction; feed controlling mechanism normally conditioned for effecting character spacing movements of said carriage element and being conditionable for enabling tabulating runs of said carriage element; tabular stop means on one of said elements; a carrier mounted on the other of said elements for movement parallel'to' the carriage element travel from a normal position to an actuated position; a plurality of tabular stop devices mounted on said carrier for conjoint movement therewith parallel to the carriage element travel and for individual movement transversely of the direction of carriage element travel from retracted positions in which said tabular stop devices are not engageable with said tabular stop means into projected positions in which said tabular stop devices are engageable with said tabular stop means and vice versa; biasing means for urging said carrier to and maintaining it in its normal position; means for conditioning said feed controlling mechanism for enabling a tabulating run of said carriage element; setting means for moving a selected one of said tabular stop devices from its retracted postion to its projected position; debiasing means for disabling said biasing means to permit said carrier to be moved without being restrained by said bias- 1ng means when said tabular stop means and the selected tabular stop device are in mutual engagement as the carriage element approaches the end of a tabulating run; and manually controlled means for operating said conditioning means, said setting means and said debiasing means.

14. In a typewriter or like machine, the combination of a frame element; a carriage element mounted on said frame element for character spacing and return travel;

mechanism for driving said carriage element in the character spacing direction; feed controlling mechanism normally conditioned for eifecting character spacing movements of said carriage element and being conditionable for enabling tabulating runs of said carriage element; tabular stop means on one of said elements; a carrier mounted on the other of said elements for movement parallel to the carriage element travel from a normal position to an actuated position; a plurality of tabular stop devices mounted on said carrier for conjoint movement therewith parallel to the carriage element travel and for individual movement transversely of the direction of carriage element travel from retracted positions in which said tabular stop devices are not engageable with said tabular stop means into projected positions in which said tabular stop devices are engageable with said tabular stop means and vice versa; biasing means for urging said carrier to and maintaining it in its normal position; means for conditioning said feed controlling mechanism for enabling a tabulating run of said carriage element; setting means for moving a selected one of said tabular stop devices from its retracted position to its projected position; debiasing means for disabling said biasing means to per mit said carrier to be moved Without being restrained by said biasing means when said tabular stop means and the selected tabular stop device are in mutual engagement as the carriage element approaches the end of a tabulating run; power driven means; and manually operable means for effecting operation of said conditioning means and said setting means and for efiecting operation of said debiasing means by said power driven means;

15. in a typewriter or like machine, the combination of a frame element; a carriage element mounted on said frame element for character spacing and return travel;

mechanism for driving said carriage element in the character spacing direction; feed controlling mechanism'normally conditioned for efiecting character spacing movements of said carriage element and being conditionable for enabling tabulating runs of said carriage element; tabular stop means on one of said elements; a carrier mounted on the other of said elements for movement parallel to the carriage element travel from a normal position to an actuated position; a plurality of tabular stop devices mounted on said carrier for conjoint movement therewith parallel to the carriage element travel and for individual movement transversely of the direction of carriage element travel from retracted positions in which said tabular stop devices are not engageable with said tabular stop means into projected positions in which said tabular stop devices are engageable with said tabular stop means and vice versa; biasing means for urging said carrier to and maintaining it in its normal position; means for conditioning said feed controlling mechanism for en abling a tabulating run of said carriage element; setting means for moving a selected one of said tabular stop devices from its retracted position to its projected position; debiasing means for disabling said biasing means to permit said carrier to be moved without being restrained by said biasing means when said tabular stop means and the selected tabular stop device are in mutual engagement as the carriage element approaches the end of a tabulating run; power driven means; manually operable means; and means responsive to operation of said manually operable means for efiecting operation of said conditioning means, said setting means and said debiasing means by said power driven means.

16. In a typewriter or like machine, the combination of a frame element; a carriage element mounted on said frame element for character spacing and return travel; mechanism for driving said carriage element in the character spacing direction; feed controlling mechanism normallyconditioned for effecting character spacing movements of said carriage element and being conditionable for enabling tabulating runs of said carriage element; tabular stop means on one of said elements; a carrier mounted on the other of said elements for movement parallel to the carriage element travel from a normal position to an actuated position; a plurality of tabular stop devices mounted on said carrier for conjoint movement therewith parallel to the carriage element travel and for individual movement transversely of the direction of carriage element travel from retracted positions in which said tabular stop devices are not engageable with said tabular stop means into projected positions in which said tabular stop devices are engageable with said tabular stop means and vice versa; biasing means for moving said carrier from its actuated position to and maintaining it in its normal position; means for conditioning said feed controlling mechanisms for enabling a tabulating run of said carriage element; setting means for moving a selected one of said tabular stop devices from its retracted position to its projected position; debiasing means for disabling said biasing means to permit said carrier to be moved without being restrained by said biasing means when said tabular stop means and the selected tabular stop device are in mutual engagement as the carriage element approaches the end of a tabulating run; power driven means; key means; means responsive to operation of said key means for efiecting operation of said setting means and said conditioning means and for effecting operation of said debiasing means by said power driven means; and means responsive to movement of said carrier to its actuated position for restoring the selected tabular stop device to its retracted position, deactivating said conditioning means to prepare said feed controlling mechanism for elfecting character spacing movements of said carriage element, and deactivating said debiasing means to enable said biasing means to restore said carrier to its normal position.

17.7 In a typewriter or like machine, the combination of a 'frame element; a carriage element mounted. on said frame element for character spacing and return travel; mechanism for driving said carriage element in the character spacing direction; feed controlling mechanism normally conditioned for effecting character spacing movements of said carriage element and being conditionable for enablingtabulating runsof-saidcarriageelement; tabular stop means on one of said elements; a carrier mounted on the other of said elements for movement parallel to the carriage element travel from a normal position to an actuated position; a plurality of tabular stop devices mounted on said carrier for conjoint movement therewith parallel to the carriage element travel and for individual movement transversely of the direction of carriage element travel from retracted positions in which said tabular stop devices are not engageable with said tabular stop means into projected positions in which said tabular stop devices are engageable with said tabular stop means and vice versa; biasing means for moving said carrier from its actuated position to and maintaining it in its normal position; means for conditioning said feed controlling mechanism for enabling a tabulating run of said carriage element; setting means for moving a selected one of said tabular stop devices from its retracted position to its projected position; debiasing means for disabling said biasing means to permit said carrier to be moved without being restrained by said biasing means when said tabular stop means and the selected tabular stop device are in mutual engagement as the carriage element approaches the end of a tabulating run; power driven means; key means; means responsive to operation of said key means for eifecting operation of said setting means and said conditioning means and for effecting operation of said debiasing means by said power driven means; latch means for releasably holding said responsive means in operated position; and means operable by movement of said carrier to its actuated position for releasing said latch means thereby to eifect restoring of the selected tabular stop device to its retracted position, deactivating of said conditioning means to prepare said feed controlling mechanism for efiecting character spacing movements of said carriage element and deactivating of said debiasing means to enable said biasing means to restore said carrier to its normal position.

18. In a tabulating mechanism, a carriage; a carrier; means mounting said carriage and said carrier for movements in parallel paths; a tabular stop means on said carriage; a tabular stop device mounted on said carrier for movement from a retracted position to a projected position for engagement with said tabular stop means; biasing means effective when said tabular stop device is in its retracted position for urging said carrier and the tabular stop device thereon parallel to said paths in 'a direction toward said tabular stop means; means for moving said tabular stop device from its retracted position to its projected position; means for retaining said tabular stop device in its projected position; means operable when said tabular stop device is moved from its retracted position to its projected position for disabling said biasing means to enable said carrier to be moved freely in the opposite direction upon engagement of said tabular stop means and said tabular stop device; and means responsive to movement of said carrier in said opposite direction for disabling said retaining means.

19. In a tabulating mechanism, a carriage, a carrier; means mounting said carriage and said carrier for movements in parallel paths; a'tabular stop means on said carriage; a tabular stop devicemounted on said carrier for movement from a retracted position to a projected position for engagement with said tabular stop means; spring means eflective when said tabular stop device is in its retracted position for biasing said carrier and the tabular stop device thereon parallel to said paths in a direction toward said tabular stop means; means for moving said tabular stop device from its retracted position to its projected position; means for retaining said tabular References Cited in'the file of this patent l stop device in its projected position; debiasing means operable when said tabular stop device is moved from its UNITEDSTATES P TE' s retracted position to its projected position for disabling 37, Brown --V---- said spring means to enable said carrier to be moved 5 1,042,863 Barron --'---f--- ,191 freely in the opposite direction upon engagement of said 2,186,542 Kammel 1940 tabular stop means and said tabular stop device; and 2,353,095 Von Reppert -a July 4,1 1944 means responsive to movement of said carrier in said opposite direction for disabling said retaining means. 

